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down/up arrow key not working for selecting an item in combobox

hi

i have written some code for selecting an item in combobox dropdown
list which is in datagrid columm. by scrolling the mouse we select any
item from the list.
but by pressing the down key arrow it is not working
can u tell me what are the properties i have to add to slect an item in

processcmdkey method.
code is:
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
switch(keyData)
{
case Keys.Down:
// toggle the dropdown state
this.DroppedDown ^= true;
this.AllowDrop = false;
this.DropDownStyle = ComboBoxStyle.DropDown;
//comb.DropDownStyle = ComboBoxStyle.DropDownList;
return true;
}
return base.ProcessCmdKey( ref msg, keyData );
}
thaks
koti

Mar 7 '06 #1
0 2047

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